Integral brake element



Jan. 1, i946.

A. H. PEYCKE ET AL INTEGRAL BRAKE ELEMENT Filed Sept. 23, 1943 3 Sheets-Sheet 1 Jan. 1,1946. A. H. PEYCKE ET AL INTEGRAL BRAKE ELEMENT Filed Sept. 23, 1943 s Sheets-Sheet 2 INVENTORS Z J W W Jan. 1, 1946. A. H. PEYCKE ET AL INTEGRAL BRAKE ELEMENT Filed Sept. 23, 1943' 3 Sheets-Sheet 3 YINVENTQRS Patented Jan. 1, 1946 Ill.,aassignors toaAmerican Steel Foundries -Ghicage,- Ill.,'acorporation of NeyvJersey Mammal; Seiifinliei I 11 Claims.

oueinventi ii relates ta iimie iieads far mi- Way brake'paiti'cillarly; and is equally applicable as' slo oiation with t runnio'ri portionsof an as sl'o ciated lev'e'r or'b'e'am 'orh'anger; or a combination h fr df In bo h he tyre and rei ht; eve

23, 19 set so?! I wiles-242') A g a side elevation"thidfff igiiie'2 oflbrakebea'm's, the brake head i'sfcolinmonly a11- ranged, with means" for "supporting" n associated brake shoe which i5" exp'eeted to' be replaced as wear takesfplaee'. Undeifp esent' conditions, it is' exceedingly di fii'oultjto maintain the proper fixed" relation between the brake head and thefbr'ake' shoe which may be mounted thereon. The usual method of securing the bfake'shoe on the brake head is, by means of an aronate key passing through openings ininterlaced key lugs on theheadandehoe. Other"diflicnltiesaiiee Such s removal of the key itself if it'is wedged-in s'ufiiciently se'eufely to pi ey'entf relative movement between the; head andsh'oe'; breakage offt'he head 01 the shoe o1 p'arts of both resulting inrelative looseness and unevenwear.

Qur invention is" designedto' overcome these di'fliou'ltiee byfeliminatingentirely the use of seria rate brake heads andbrak'e shoes -a'nd securing means'therefo such as a key; by making the brake head'and brake sho'as a single integral structure built up asJ-neoess'ary of differeritm'aterials order to'accommddatethe dual phrposes of the head' and the' shoe; I

With'this in mind, w have designed a novel arrangement of brake head and shoe combination as a" Single integral structure wherein that portion corresponding to the common brake head maybe formed of a' suitable' material suoh z'als malleable "iion or cast" steel; and the other ortion of thbmnbinat'ionCorresponding to" the usual shoe may be formedof'such abraivere sisting material as may be desired as for-example, cast iron or" speeial alloys; or a combination of reinfoi'eing i'fieat'ns around which said alloy oreast 'iron' may" be 'kia'sfil In the difawi'ng's; e I

igu es; ijtogj ilhisfiiateioneimodificationof" i 'j n j in' ed, TO 'u f' ii P a e; o e oidinary f ffeighfitybe of brake head, Figure 1 eva pn tak em, l i .3 5 123 n 1; Fi u e.

we 1& v wtaken em ire n t em 91 meme in i t dLbY; 91

au a a s Fi u eiu fi ersepi ne i yie wtalie'n a horizontal lane approximately as'indiea'ted by the line-t-ftofjign 'e 1* Billnsti'at'anothe' 'e bodiewe i e we Fig W iee i ze ad plane"indicatdapproiiiinately Figure 5.= H 3 r I Figures 9 'to 11 inelusive illustrate wariqus' type 0f s iing mea'ne between the brakeheadfpdr tion and the shoe" portion's bt our novel brake head=arrarigemerit; equally applicable tq 'brakef head's; oi freight and; passenger type, Figures =9; 10, 11 name bin 'g front-elevations; rand Fignfs QA- 10A and -l-lA beingoutlined side eleva-"- tieng corresponding respectively to. the showin ol -Fig ures 9kl0landfll'. l Referring first in detail to" the modification shown in Figuresi-tO- A our novel braike head arrangementilhisitrate azdual purbosestructdre cc imp'risim; a structural portiomand ahwear" perti'on', the strnctural p'or'tio'n vcom'esporiding to theusua1.:bvake head: and-the wearportion :to the usual brake shoe: said structiiral" portion may be a cast member including an: arcuaiteawebi integrallytformed with a; venticazlxweb" 4:, said vertical-wed being reinforced by thelowerand upper .diagonaMy-aerranged gussets or ribs fi" and 8; The arcuater web? 2: may; be interrupted a'p-i proximately-22.1; the: middIe thereof by the hanger slot: l 0: and: approximately: in; alignment; the amualte -hangeris.ea.t;l2;1 At the: inner endiof said slat may be termed the:usualieompressionzmeme be: pocket l4 inntherspacedwalls of which may bet'formed" aligned-openings l6aand "lfl -(fi urefi); for accommodation of the tension member or andoutwardly-v of ;theFop'Qningfl 8 maybeformed the-nut seat 20 in'welkknown'manner-i I Above-and belowthenbrak h nger slot l;0; the' arcuate web 2 may be? boredsont to form'a seriesi of equally spaced: openings 12*;222" on ea'ch side present spaced wear surfaces 30, 30 struck mately round with the radial to the web 2. r

The wear element of our novel structure may be cast as upper and lower portions 24 and 26 respectively above and below the hanger slot I0, each of said portions having a plurality of lugs axis of each approximately ate web 28, 28 (Figure 4) poured as an integral part of said securing element and solidifying within said before-mentioned aligned openings 22, 22 in the web 2. The wear element portions 24 and 26 may from-a I common center and designed for frictional engagement with the wheel; 7 4. i a 1 In this integral, cast arrangement the st'rucf tural portion will be formed of metal suitable for I sustaining the shock customarily received by the the wear element integrally I cast as a part thereof may be formed of other brake head, while wear withstanding material such as cast iron-or other alloy. f

i lithe 'modification'illustratedinFigures Sta 3 inclusive is illustrated a so-"called passenger type oLbrake head arrangement, the structural portion whereof, includes the arcuate web 48 integrally cast with the vertical side webs or walls 42, 42 at opposite edges of said arcuate web '48.

Integrally joining the spaced walls or webs 42,

42 may be the cylindricalweb 46 defining the opening which may receive the trunnion portion ofanassociated beam (not shown). A rib may join the cylindrical-web 4 6 with the arcuate webjfl. At the upper portions of the vertical-webs 42,; 42 maybe formed the aligned bosses 58, 50 defining thee-hanger openings 52, 52. Above and belowthe rib 49 the arcuate web 45 may have a series of equally spaced openings 54, 54, said .openingsbeing defined by flaring walls diverging towardtherear of the brake head structure, as

' wiiInithis;modification we have'illustrated thesee curing lugsas formed above andbelow the horizontal' rib'49as two parallelrows ofspaced lugs and an intervening row-.01 alternately arranged lugs; eachof saidlugsbeingequally spaced from adjacent lugs in other rows..

Figures 9 and 9A.illustrate a modified arrangement for securing the structural portion I .of

I82,- I82 thereof, said structural portion comprising an arcuate Web I84 interrupted centrally thereof by the hanger slot I86,;said web presenting onitswear portion engaging face a series of equally'spaced transverse slots I 08, I881within which may be received transverse ribs III), III) cast asi tegralportions of the wear elements I 82, gz, '...rx. ,';..m ,'4,' w F-igures 10 and 10A illustrate V modified means of securingthe-structural portion I28 of a brake head to the wear portions I22, I22 thereof above and below the hanger slot I24.J. I g

In this modification the structural member -,I 28. is illustrated as comprising an arcuate:web l2,6

integrally formed with. the spaced; vertical webs I28, I28 at the opposite edgesthereof, one of said webs =-I28 beingloiiset as at I 30 to accommodate the nut seat I32. In this modification the arcuperiphery of an" associated a brake head. arrangementrto the wear portions I wear elements I22, I22 to 'positioned above and below The wear'portions I44, 7 the arcuate web I24 is formed with a series of openings I 34, I34, each of said openings I34 having cylindrical side walls instead of flaring walls. Each wear portion I 22 may be cast with integral lugs I36, I36 extending through the openings I34, I34, and each lug I36 may have an enlarged head cast or welded thereon in abutment with'the back face of the arcuate web *I25,'thus adequately securing the the structural portion 120. r

In the modification illustrated in Figures 11 and 11A the structural element I40 includes the arcuate web I42 and the wear ortions I 44, I44 the hanger slot I46.

I42 and elongated lugs I48, I48 may be cast within the elongated slots I50, I50 formedin said arcuate web I42 above and below the hanger opening I46.f As well seen in the view of Figure "11, parallel slotsgl58, I50 may be formed in the arcuate web I42 at opposite sides of the vertical web I52, and the sidewalls, as well as V the'en'd' walls, of said slots may be flared as seen in Figure 11A in order to securelyhold the lugs I48, I48 which may be cast therein. 1 I

Figure 113 illustrates'a further'arrangement comparable to'that of Figure 11 in which, how: ever, thestructural element I68 is formed with a single elongated slot in ,the form ofa rectangular opening with flaring side and end walls through which lugs I62, I62 above and below the hanger slot I64'may be'cas't as integral parts of the wear element, said wear element being securedrtosaid structural'element by 'meansofsaid lugs in manner comparable to that illustrated in Figure 11;

a In theshowingof Figure 113, however, the structural element I68 is shown as comprising an arcuate web I66 integrally, formed with websv or walls I68, I68 at opposite sides'tliereof, comparable-to the arrangement in' Figure .-10'. 7 Each of the above describedmodifications illustrates a brake head arrangement comprising a structural element having an arcuate web with a series of",openings therein within whichmay be donned lugs cast integrally-with wear portions which may be integrally formed as a part ofthe brake head structure by casting "against the structural element. By this means the structural portion and the wear portion areformed as parts of an integral structure, thus preventing. their working apart or breaking awa from'eachother,

as' 'may occur in structureswher ein the brake head andthe brake shoe are separately formed 4 and fixed'withrespect to; each other by meansrof in an arrangement comprising three or more pieces, all of which are subject to abrasion against each other andconsequent wear and possible breakage, as I already mentioned i 'It is to beunderstood that we do not'wi sh to be limited by the exact-embodiments of thedevice shown which are merely by way of-fillustra tion' andnot limitation as various and other forms of the; device will; of coursebe apparent to those skilled in the art withoutrdeparting ifr m the spirit of the invention orthe scope of the claims.- Weclaim: g I 1 ,1. A composite brake Zmember comprising a shock resisting cast structural element having a ,vertical web and spaced arcuate webs with series of openings therethrough, a horizontal slot in said vertical web between said I spaced webs,

a third member epaced wear resisting elements fixed to saidarcu- I28 above and below the hanger opening I44 may be cast against fixed therein, and means integrally formed with said webs aifording connection to associated brake parts including a seat for an associated compression member defined by spaced walls,

series of openings therethrough, a horizontal slot in said vertical web between said spaced webs, spaced wear resisting elements cast against said arcuate webs above and below said slot with lugs extending through the adjacent openings and welded therein, and means integrally formed with said webs affording connection to associated brake parts including a seat for a compression member defined by spaced walls, and aligned openings in said walls for an associated tension member.

3. In a wheel engaging brake element, a structural member of shock resisting material comprising a vertical web and an arcuate web interrupted by a transverse slot, parallel vertical elongated openings in said arcuate web above and below said slot, and wear resisting elements cast against said arcuate web above and below said slot with integral lugs extending through said openings, each of said openings having diverging end and side walls with the narrower portion of said opening adjacent the abutting wear resisting element.

4. A composite brake member comprising a cast structural element of shock resisting material having arcuate webs spaced by a transverse slot, and a vertical web, said arcuate webs having a series of Spaced openings therethrough,

and a plurality of wear resistant elements fixed to said arcuate webs above and below said slot with integral lugs fixed in said openings, each of said openings having walls diverging in a direction away from the adjacent wear resisting element.

5. In a composite brake element, a structural member of shock resisting material comprising a vertical web and an arcuate web, a transverse slot extending through said webs and defining an opening for the accommodation of a supporting member, openings in said arcuate web above and below said slot, and wear resisting elements fixed to said arcuate web above and below said slot with integral lugs extending into said openings, said openings being flared toward the extremities thereof remote from said elements.

I 6. A wheel engaging brake member comprising a shock resisting cast structural element having a. vertical web and an arcuate web with a series of openings therethrough, diagonal ribs merging with said webs, a horizontal slot in said arcuate web, spaced wear resisting elements cast against said arcuate web above and below said slot with lugs extending through the adjacent openings and welded therein, and means on said vertical web affording connection to associated brake parts.

* ing a shock resisting cast structural element having a vertical Web and an arcuate web with a series. of openings therethrough, diagonal ribs merging with said webs, a horizontal slot in said arcuate web, and spaced Wear resisting elements cast against said arcuate web above and below said slot with lugs extending through the adjacent openings and welded therein.

9. A composite brake member comprising a shock resisting structural element having a vertical web and spaced transverse webs with a plurality of openings therethrough, a transverse slot in said vertical web between said spaced webs, spaced wear resisting elements fixed to said transverse webs above and below said slot with lugs extending through the adjacent openings and fixed therein, and means integrally formed with said webs affording connection to associated brake parts including a seat for a compression member defined by spaced Walls, and aligned openings in said walls for an associated tension member.

10. In a composite brake member, a structural element of shock resisting material having arcuate webs and at least one vertical web integral therewith, a transverse slot extending through said webs, said slot terminating at its inner extremity in a seat for an associated supporting member for said brake member, a plurality of openings through said arcuate webs above and below said slot, and spaced Wear resisting elements fixed to said arcuate web above and below said slot respectively and having integral lugs fixed in said openings, the adjacent edges of respective wear resisting elements being substantially coplanar with the top and bottom edges of said slot.

11. In a wheel engaging brake element, a structural member of shock resisting material comprising a vertical web and an arcuate web, a transverse slot, extending through said webs and defining an opening 'for accommodation of a supporting member, openings in said arcuate web above and below said slot, and wear resisting elements cast against said arcuate web above and. below said slot with integral lugs extending in said openings, each of said openings having diverging walls.

ARMAND H, PEYCKE. RAY G. AURIEN. 

